Abstract
Cellulosic ethanol is one of the most important biofuels, yet its commercial production is hindered by the low-efficiency and high-cost bioconversion process. Here, we report a new chemocatalytic approach for the one-pot production of cellulosic ethanol. With a multifunctional Mo/Pt/WOx catalyst, cellulose is directly converted to ethanol in a one-pot reaction with a yield as high as 43.2 C%. Kinetic analysis reveals that such a one-pot process involves tandem catalysis from cellulose to ethylene glycol (rapid) followed by hydrogenolysis of ethylene glycol to ethanol (slow). Characterizations show that isolated and low-coordinated MoOx bonds to metallic Pt particles on the mesoporous WOx support, constituting xOMo–Pt–WOx interfacial sites, which offer high activity for C–O cleavage of ethylene glycol.
Original language | English |
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Pages (from-to) | 1937-1948 |
Number of pages | 12 |
Journal | Joule |
Volume | 3 |
Issue number | 8 |
DOIs | |
State | Published - 21 Aug 2019 |
Externally published | Yes |
Keywords
- Pt/WO
- biomass
- cellulose
- ethanol
- ethylene glycol
- hydrogenolysis
- molybdenum oxides
- platinum
- tandem catalysis
- tungsten oxides